watch 5 inputs at the same time about onoff HOT 6 CLOSED

I want to add that it works using this node.js module: https://github.com/EnotionZ/GpiO

But I would like to have it work with yours as yours doesn't use an interval to watch the gpio 'files' ;-)

from onoff.

Don't know what the problem is here. I'll take a look.

from onoff.

The gpiowatcher addon used by onoff to detect GPIO interrupts uses the libuv thread pool. The default size of this thread pool is 4 on unix systems. This explains why you can't watch 5 inputs. With Node v0.10.x the thread pool size can be specified using the UV_THREADPOOL_SIZE environment variable.

An example of the usage of UV_THREADPOOL_SIZE can be seen here run-five-inputs which runs five-inputs with a thread pool size of 10.

from onoff.

Documented the issues in README.

from onoff.

Using one thread to detect interrupts on a single GPIO is a bit of a waste of resources. In addition, having to increase the thread pool size using UV_THREADPOOL_SIZE in order to watch five or more inputs is more of a workaround than a solution. Better would be to detect all interrupts with one thread.

from onoff.

onoff v0.2.0 uses one thread to detect all interrupts. The workaround based on the UV_THREADPOOL_SIZE environment variable described above is no longer necessary.

from onoff.